Reverse osmosis water purifier



FIG. 1 is a top, front and left side perspective view of a reverse osmosis water purifier showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a rear elevational view thereof; and

FIG. 5 is a right side elevational view thereof. 

The ornamental design for a reverse osmosis water purifier, substantially as shown and described. 